Tie-plate.



PATENTED JUNE 26, ,1906.

Niszmvs.

A. H. SMITH. TIE PLATE. APPLICATION FILED FEB.14. 190a.

' %TATE rarer Ci? caries,

ADOLPH H. SMITH. OF CHICAGO, ILLINOIS, ASSIGNOR TO THE RAILROAD EUPPLY COMPANY, OF CHICAGO, ILLINOIS, A. CORPORATION OF ILLL' TiE PLATE.

Specification of Letters Patent.

Patented June 26, 1906.

Application filed February 14, 1906. Serial No. 300.9%.

'citizenof the United States, residing at Chicago, county of-Cook, State of Illinois, have invented a certain new and usefulIm rovement in Tie-Plates and I declare'the' olloW- ing to 'be a full, clear, and exact description of the invention,jsuch as will enable others skilled in the art to which it pertains tomake and use the same, refe'rence being had to the accompanying drawings,--which form a part of thisspecification.

' theties, such ribs'becomeembedde in' the My invention relates in general to railroadtrack fastenings, and more particularly to tie-plates.

It is customary to interpose metallic plates between railroad-rails and the supportingties in order to prevent the wearing away of the ties by the rails and in order to more firmly secure the rails to'the ties, and thereby prevent both longitudinal creeping and lateral spreading of the rails with respect to the ties.

Itis desirable that tieplates should have ribs or projectionson thelr under surfacesto prevent movement of .the lates upon the ties; but such projections s ould be so arranged as not to injure the ties-when the plates sustain the loads of trainspassin over the rails. When tielates are rovide' with ribs or projections a ining wit the rain of ties, and when subjected to the movement incident to passing trains soon abrade and Wear the wood.

The primary object of in invention is to provide a tie-plate which W en applied to a tie will not cree thereon, will not wear away the Wood, and omwhich the rail will not be detached by usage. I

A further object of m invention is to provide a tie-plate of simp e, durable, and economical construction.

My invention, generally dcscribed, cons ists of a tielate the under surface of which is ,rovided ing longitudinally beiieath the rail and'having on each side of such channels intersecting ribs extending at an angle to the grain of the tie.

My invention will be more fully described hereinafter with reference to the accompanying drawings, in which the same is illustrated with one or more channels, extendas embodied in a convenient and form, and in which- Figure 1 is a plan view of the under surface of the tie-plate, and Fig. 2 a perspective view of the'plate.

The same reference characters are used to designate the same parts in the tWo figures of the drawings. f

Reference character A indicates a tie-plate practical Y made of suitable materialsuch, for instance,

as metal rolled into the desired form. The upper surface of the tie-plate is provided with a flat intermediate portion, upon which the base of the rail rests. A shoulder a, is provided on the upper surface of the plate, against which the outer edge of the base of the rail engages. The portions A and A of the upper surface of the plate on the opposite sides of the fiat intermediate portion may conveniently be inclined downwardly, as shown in Fig. 2. The under surfaceof the plate A is provided with ribs of V-shape cross-section, such ribs being arranged at an angle to the grain of the tie. The ribs may conveniently be formed in .two series, one series 1) extending parallel to the rail, and consequently transversely with respect to the fiber of the tie. The other series of ribs?) extend diagonally with respect to the first series, so that they also extend at an angle to the grain of the-tie. Two channels B and B are provided at the under surface of the plate, arran ed parallel with and beneath the base of the rail. It is obvious that one of such channels may be provided or more than two, as desired.

The tie-plate is provided with the 'usual holes therethrough for the assage of spikes to secure the base of the rail to the plate and to secure'the late to the tie. 0 indicates two of such oles extending through the shoulder a, while 0 indicates other holes spaced apart from the shoulder a a distance conforming to the width of the base of the rail.

The channels in the under surface of the I the ribs against the upper surface of the tie ing 1e passage of trains. The channels also serve to decrease the weight of the plate and and preventing the creeping of the plate durve 'sely with respect to the seating ribs on Ulldflf s economical i factm'e. By arranging to the grain of the wow @mbedded in the tie, but creeping of the iplfh lfi,

Edges being forced a i From therforegoin descri ion observed that I hm m invented tie-plate which though simpic icai'in canst ructien wiii secui'eiy (101111 rail to the tie Without either cmepin (}1'/1"3L1-- ing away the surface of the tie.

Having now fully described my inventiml, What I claim as new, and desire Lfifiters Patent,'is-

1. A tie-plate having a i ribs on its under surface extend f and g gecgnd, smies of pal alici ribs ing the ribs in the first series.

2. A tie-piate having one or mere 1; ip its under surface ex" with respect to the ta .1 an

iii an angle to the grain of 112 ta seems] by v A tieqalate having one 01 more channels sur a- U- fending longitudinally :cno the m1}, am having a Series Ibs on its under surface extending ihe grain of the tie, and a sec 01 p @2336]. ribs intersecting the ribs piw 'ality of para l i s under su Face extenising "iii-i respec't to the base the sumiace of the plate intermechannsis hai'iatiq projections ags the surfacaoii' the tie.

having" two parallgl channels we extending lefngitudinaily g 11 srisecting ribs extgnding at an is in 01% e 1' J When-mi" 1 Sign this specifics ibizm. iii aha presence of two witnesses,

ADGLPH H. SMITH.

in, it

-. .u. WILKINSON, 

